osfmk/mach/ppc/exception.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * @OSF_COPYRIGHT@
  32  */
  33 /*
  34  * Copyright (c) 1990, 1991, 1992, The University of Utah and
  35  * the Center for Software Science at the University of Utah (CSS).
  36  * All rights reserved.
  37  *
  38  * Permission to use, copy, modify and distribute this software is hereby
  39  * granted provided that (1) source code retains these copyright, permission,
  40  * and disclaimer notices, and (2) redistributions including binaries
  41  * reproduce the notices in supporting documentation, and (3) all advertising
  42  * materials mentioning features or use of this software display the following
  43  * acknowledgement: ``This product includes software developed by the Center
  44  * for Software Science at the University of Utah.''
  45  *
  46  * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  47  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
  48  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  49  *
  50  * CSS requests users of this software to return to css-dist@cs.utah.edu any
  51  * improvements that they make and grant CSS redistribution rights.
  52  *
  53  *      Utah $Hdr: $
  54  */
  55
  56 #ifndef _MACH_PPC_EXCEPTION_H_
  57 #define _MACH_PPC_EXCEPTION_H_
  58
  59 #define EXC_TYPES_COUNT 10      /* incl. illegal exception 0 */
  60
  61 #define EXCEPTION_CODE_MAX 2    /* elements in vector (code+subcode) */
  62 /*
  63  *      EXC_BAD_INSTRUCTION
  64  */
  65
  66 #define EXC_PPC_INVALID_SYSCALL 1    /* invalid syscall number */
  67 #define EXC_PPC_UNIPL_INST      2    /* unimplemented instruction */
  68 #define EXC_PPC_PRIVINST        3    /* priviledged instruction */
  69 #define EXC_PPC_PRIVREG         4    /* priviledged register */
  70 #define EXC_PPC_TRACE           5    /* trace/single-step */
  71 #define EXC_PPC_PERFMON     6    /* performance monitor */
  72
  73 /*
  74  *      EXC_BAD_ACCESS
  75  *      Note: do not conflict with kern_return_t values returned by vm_fault
  76  */
  77
  78 #define EXC_PPC_VM_PROT_READ            0x101 /* error reading syscall args */
  79 #define EXC_PPC_BADSPACE                0x102 /* bad space referenced */
  80 #define EXC_PPC_UNALIGNED               0x103 /* unaligned data reference */
  81
  82 /*
  83  *      EXC_ARITHMETIC
  84  */
  85
  86 #define EXC_PPC_OVERFLOW                1    /* integer overflow */
  87 #define EXC_PPC_ZERO_DIVIDE             2    /* integer divide by zero */
  88 #define EXC_PPC_FLT_INEXACT             3    /* IEEE inexact exception */
  89 #define EXC_PPC_FLT_ZERO_DIVIDE         4    /* IEEE zero divide */
  90 #define EXC_PPC_FLT_UNDERFLOW           5    /* IEEE floating underflow */
  91 #define EXC_PPC_FLT_OVERFLOW            6    /* IEEE floating overflow */
  92 #define EXC_PPC_FLT_NOT_A_NUMBER        7    /* IEEE not a number */
  93
  94 /*
  95  * EXC_PPC_NOEMULATION should go away when we add software emulation
  96  * for floating point. Right now we don't support this.
  97  */
  98
  99 #define EXC_PPC_NOEMULATION             8       /* no floating point emulation */
 100 #define EXC_PPC_ALTIVECASSIST   9       /* Altivec Denorm Assist */
 101
 102 /*
 103  *      EXC_SOFTWARE
 104  *      Note: 0x10000-0x10003 in use for unix signal
 105  */
 106 #define EXC_PPC_TRAP            1               /* Program trap */
 107 #define EXC_PPC_MIGRATE         0x10100         /* Time to bolt */
 108
 109
 110 /*
 111  *      EXC_BREAKPOINT
 112  */
 113
 114 #define EXC_PPC_BREAKPOINT              EXC_PPC_TRAP    /* breakpoint trap */
 115
 116 /*
 117  *      machine dependent exception masks
 118  */
 119 #define EXC_MASK_MACHINE        0
 120
 121 #endif  /* _MACH_PPC_EXCEPTION_H_ */